On 8/11/2010 6:12 AM, Sake Blok wrote:
On 10 aug 2010, at 16:48, Jeffs wrote:
I have come up with the following tshark formula which seems to address my needs. Since I am not interested in the URLs from advertising agencies, videos and other embedded links in web pages, but only the top level domain I use this. Please let me know if anyone sees any gotchas or potential problems with this formula I'm very new to regex expressions and could use advice. This formula will return only the top level domains and strips out links such as admin.brightcove.com, advertisingserver.amazon.com, tubemogel.videos.com:
tshark -r test.cap -R http.request -T fields -e http.host | sed -e 's/?.*$//' | sed -e 's#^\(.*\)\t\(.*\)$#http://\1\2#' | sort | uniq -c | sort -rn | head -n 300 | sed -n -e '/www/p'
If you're only interested in an overview of visited top-level domains, without caring what the specific hosts and/or URI's were that were visited. You could use something like
tshark -r test.cap -R http.request -T fields -e http.host | sed -e 's/^.*\.\([^.]*\.[^.]*\)$/\1/' | sort | uniq -c | sort -rn | head -n 100
for the top-100 top-level domains (based on individual hits, not user sessions).
Cheers,
Sake
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Thank you for your reply. The issue I am having, and which also happens
with the formula you provided, above, is that domains are being reported
that are links (mostly advertising and graphic-image links) embedded in
the web page which I do not want for they will pollute my results. I
only want either the domain for the link clicked, or the domain for the
link typed in the browser box. For example, the formula you provided
above returns:
71 nytimes.com
15 propertyshark.com
13 fbcdn.net
5 voicefive.com
5 2mdn.net
4 brightcove.com
2 google-analytics.com
2 doubleclick.net
1 yahoo.com
1 imrworldwide.com
1 facebook.com
The above doubleclick.net, brightcove.com, 2mdn.net, and fbcdn.net
reported domains are for things like advertising links and embedded
links in the web page of the landing page for the domain typed or
clicked. This is polluting my results.
This formula, however, only returns results minus the links and images
embedded in the web page:
tshark -r test.cap -T fields -e http.host | sed 's/?.*$//' | sed -n
'/www./p' | sort | uniq -c | sort -rn | head -n 100
15 www.propertyshark.com
8 www.nytimes.com
2 www.google-analytics.com
1 www.facebook.com
However, I am new to regex so I'm sure I may be missing something or
losing some links.
Thank you.
